Table 5. Effects of mutations on mean undulation frequency, mean forward velocity and mean reverse velocity.

Values were computed separately for each worm and are shown as mean ± sem (n = 25–31). Undulation frequency was estimated as one-half of the reciprocal of the time of the first local minimum in the heading autocorrelation function. All p-values are from two-tailed t-tests and are shown without correction for multiple comparisons. Blue denotes significance at p<0.05. Red denotes significance at p<0.05 after Bonferroni correction for 15 comparisons.

		Undulation frequency (Hz)			Forward velocity (μm/s)			Reverse velocity (μm/s)
Genotype	Class	Wild type	Mutant	p <	Wild type	Mutant	p <	Wild type	Mutant	p <
eat-4(ad572)	HYP A	0.272 ± 0.011	0.222 ± 0.007	4x10-4	156 ± 5	122 ± 4	1x10-5	-228 ± 5	-236 ± 9	0.5
eat-4(ky5)	HYP B	0.317 ± 0.011	0.256 ± 0.009	2x10-4	184 ± 7	143 ± 6	5x10-5	-262 ± 10	-271 ± 7	0.5
glr-1(n2461)	HYP C	0.294 ± 0.008	0.291 ± 0.010	0.9	158 ± 5	166 ± 6	0.3	-236 ± 6	-236 ± 5	1
glr-1::glr-1(A/T)	DEP A	0.272 ± 0.011	0.642 ± 0.029	6x10-13	156 ± 5	112 ± 5	3x10-7	-228 ± 5	-143 ± 5	2x10-15
nmr-1::glr-1(A/T)	DEP B	0.294 ± 0.008	0.695 ± 0.037	2x10-12	158 ± 5	138 ± 5	0.011	-236 ± 6	-144 ± 5	7x10-15